Abstract: A stackable freight container comprising a rigid bottomless container body 10 and a separate freight-carrier pallet 11 which can be bolted into the open underside of the body 10 by means of shoot-bolts 37 to close the container and form its load-carrying floor. When the closed container is placed on a flat supporting surface 40 the lower edges of the body 10 rest on the surface 40 with the loaded pallet 11 supported clear of the surface 40 by the shoot-bolts 37, the weight of the loaded pallet 11 then preventing the withdrawal of the shoot-bolts. To open the container it must be lowered on to packing 39 to take the weight of the loaded pallet 11 off the shoot-bolts 37 so that they can be withdrawn.The body 10 can be used inverted as a floating pontoon unit, whose deck is afforded by the pallet 11.